Improvement in exhaust-nozzle for steam-engines



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@anni i' JOI-IN SANDERS, 0F HARRISBURG, PENNSYLVANIA, ADMINISTRA- TOROF THE ESTATE OF RICHARD NORRIS, DECEASED.

Leiters Patent o. 84,370, elated November 24, 1868. "\'--'f----.-.

The Schedule referred to in these Letters Patent and making part of the same.

To all whom it may concern:

^ Be it known that I, JOHN SANDERS, of Harrisburg, in the State of Pennsylvania, am the administrator of the estate of RICHARD Nonnrs, -of Central Depot, in the State of Virginia, who was, during his lifetime, the original and first inventor of certain new and useful Improvements in Exhaust-Nozzles for Steam- Engines; and I do hereby declare that the following is afull, clear, and exact description thereof, reference being had to the accompanying drawings, and to the letters of reference marked thereon, in which- Figurcul is a vertical section.

Figure 2 is a plan view.

Figure 3 is a detached plan view, showing the valves of the nozzle. l

- The nature of this invention consists in the manner herein described of constructing a spring-nozzle, so that, by its operation, fuel can be greatly saved, and the flue of the engine preserved thereby.

'.Io enable others skilled in the art to make and use this invention, I will proceed to describe its construction and operation.

In the construction of this invention, in g. 1,

A is the iire-box.

B, the boiler with ilues.

C, the smoke-chamber.

' D D, the cylinders.

E, the exhaust-nozzle.

'a a, the steam-pipes, leading to cylinders.

bb, the exhaust-pipes, leading from the cylinders to the exhaust-nozzle E.v

d d, rods, attached to the valves c c,.in figs. 2 and 3.

e e, springs, around said rods, and resting against screw-nuts on the rods'd d, (said nuts are marked g g,) and also against frames ff, which frames are attached to the smoke-chamber C in any secure manner.

The nozzle is set in a guard or ame, composed of a top, bottomand,back.

The sides of the valves are hinged at i t', fig. 3, on the back side of the guard or frame, and forms one bf the sides ofthe valve.

'Ihe hinged sides of the valve t snugly in the frame, and come to a point in front against partition h, iig. 3, and are of a triangular shape.

The top and bottom of the guard form the top and bottom of the valve. The exhaust-pipes enter this valve, as seen at b b, and bring theexhaust steam into the valve or nozzle. When not operated on bythe exhaust steam, they areheld close against the partition bythe spiral springs e clon the rods d d.

In the operation of this invention, having been constructed in the manner above described, the great amount of draught or current of air usually admitted to the re-box is shut ofi`,.which, in ordinary locomotives,

Vis necessary to cause the required draught, and which,

a small aperture for the admission of air.

The exhaust steam is let into the nozzle from the cylinders by the exhaust-pipes b b, on alternate sides ofthe partition h, iilling each side, alternately, of the valve or nozzle, as the exhaust steam enters the same. As the valves of the nozzle are alternately opened by the exhaust steam, they are immediately closed by the spiral spring e c, and the exhaust steam, having operated the valve or nozzle, passes off through the smokestack With-the smoke, and escapes by this means.

Any amount of draught required is obtained Without the usual enlarged opening in the tire-box, thus greatly saving the ir'e-box and iues, as thej intensity of the heat is greatly 4decreased in them by means of this invention.

Having thus fully described this invention,

What is claimed as new, and desired to be secured by Letters Patent, is-

Ihe arrangement of the valvesfc-c, rods al' d, springs c e, partition h, and exhaust-pipes b l), constructed as described.

In testimony that I- claim the above-described inven tion as the invention of RICHARD N onlus, for the benefit of his estate, I have hereunto signed my name, this 7th day of March, 1868. 4

- J GHN SANDERS, Administrator of Rt'cha/rd N orrts. Witnesses:

Y. C. CLAYTON, J0. O. CLAYTON. 

